Remove all other patches (if installed).
You should back up the files in your PES directory before copying: dt0b, dt0c, dt0d, dt04, dt06.
Install version 1.0 (if you have not installed). Extract and copy to PES2013 DEMO folder.
Install Update Ball PESVIET PATCH.
Install version 1.1. Extract and copy to PES2013 DEMO folder.
Install Fix Crash Inter and Brazil
Play game via pes2013 – unlock.exe.